def astype(self, dtype, copy=True):
if is_interval_dtype(dtype):
from pandas import IntervalIndex
return IntervalIndex(np.array(self))
elif is_categorical_dtype(dtype):
# GH 18630
dtype = self.dtype.update_dtype(dtype)
if dtype == self.dtype:
return self.copy() if copy else self
return Index.astype(self, dtype=dtype, copy=copy)
def astype(self, dtype, copy=True):
with rewrite_exception("IntervalArray", type(self).__name__):
new_values = self._values.astype(dtype, copy=copy)
if is_interval_dtype(new_values.dtype):
return self._shallow_copy(new_values)
return Index.astype(self, dtype, copy=copy)
